Mourning frost made me scratch my head when I combined it. "Legendary" weapons in D&D are quite frankly insane. Almost always +3 hit +3 damage with virous interesting magic properties like deals an extra 2d10 cold + 1d12 necrotic AND raises two stats to 19 or fires a projectile that has a 250ft range and does 1d8 force damage for every 10ft it travels (25d8@250ft) passing though walls, monsters solid rock.....In other words "legendary. Attuned Legendary items can turn a lv 1 character into a demi-god. They are extremely rare if nearly impossible to obtain given the power of them.
Frostbite incidentally normally does 1d6 cold damage per turn until the creature rolls a con save or soemthing like that. That would be pretty amazing considering you could inflict 3 enemies with frostbite with a magic missile. However a +1 to cold damage even on a cone of cold would be something on the lower end of "uncommon".
I do understand this level of power in EA would be OP but the aim of the game is indeed to be OP. As an adventurer you would jump at the chance to obtain any legendary item as it would quite literally buy you a kingdom.
Long story short mourning frost gave me a sad face. lol
